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/* Copyright 2011 Yorba Foundation

 *

 * This software is licensed under the GNU Lesser General Public License

 * (version 2.1 or later).  See the COPYING file in this distribution. 

 */

 

namespace AlienDb.FSpot {

 

/**

 * A class that consolidates the behavior of all F-Spot tables (apart from meta)

 * and is the one place to check whether the database version is supported.

 */

public class FSpotDatabaseBehavior : Object {

    // Minimum unsupported version: any database from that version and above

    // is not supported as it's too new and support has not been provided

    // In practice, the code may work with future versions but this cannot be

    // guaranteed as it hasn't been tested so it's probably better to just

    // bomb out at that point rather than risk importing incorrect data

    public static AlienDatabaseVersion MIN_UNSUPPORTED_VERSION =

        new AlienDatabaseVersion({ 19 });

    

    private FSpotTableBehavior<FSpotPhotoRow> photos_behavior;

    private FSpotTableBehavior<FSpotTagRow> tags_behavior;

    private FSpotTableBehavior<FSpotPhotoTagRow> photo_tags_behavior;

    private FSpotTableBehavior<FSpotPhotoVersionRow> photo_versions_behavior;

    private FSpotTableBehavior<FSpotRollRow> rolls_behavior;

    

    public FSpotDatabaseBehavior(

        FSpotDatabaseDriver driver, AlienDatabaseVersion version

    ) throws AlienDatabaseError {

        if (version.compare_to(MIN_UNSUPPORTED_VERSION) >= 0)

            throw new AlienDatabaseError.UNSUPPORTED_VERSION("Version %s is not yet supported", version.to_string());

        

        FSpotTableBehavior? photos_generic_behavior = driver.find_behavior(FSpotPhotosTable.TABLE_NAME, version);

        if (photos_generic_behavior != null)

            photos_behavior = photos_generic_behavior as FSpotTableBehavior<FSpotPhotoRow>;

        FSpotTableBehavior? tags_generic_behavior = driver.find_behavior(FSpotTagsTable.TABLE_NAME, version);

        if (tags_generic_behavior != null)

            tags_behavior = tags_generic_behavior as FSpotTableBehavior<FSpotTagRow>;

        FSpotTableBehavior? photo_tags_generic_behavior = driver.find_behavior(FSpotPhotoTagsTable.TABLE_NAME, version);

        if (photo_tags_generic_behavior != null)

            photo_tags_behavior = photo_tags_generic_behavior as FSpotTableBehavior<FSpotPhotoTagRow>;

        FSpotTableBehavior? photo_versions_generic_behavior = driver.find_behavior(FSpotPhotoVersionsTable.TABLE_NAME, version);

        if (photo_versions_generic_behavior != null)

            photo_versions_behavior = photo_versions_generic_behavior as FSpotTableBehavior<FSpotPhotoVersionRow>;

        FSpotTableBehavior? rolls_generic_behavior = driver.find_behavior(FSpotRollsTable.TABLE_NAME, version);

        if (rolls_generic_behavior != null)

            rolls_behavior = rolls_generic_behavior as FSpotTableBehavior<FSpotRollRow>;

        

        if (photos_behavior == null || tags_behavior == null ||

            photo_tags_behavior == null || photo_versions_behavior == null ||

            rolls_behavior == null

        )

            throw new AlienDatabaseError.UNSUPPORTED_VERSION("Version %s is not supported", version.to_string());

    }

    

    public FSpotTableBehavior<FSpotPhotoRow> get_photos_behavior() {

        return photos_behavior;

    }

    

    public FSpotTableBehavior<FSpotTagRow> get_tags_behavior() {

        return tags_behavior;

    }

    

    public FSpotTableBehavior<FSpotPhotoTagRow> get_photo_tags_behavior() {

        return photo_tags_behavior;

    }

    

    public FSpotTableBehavior<FSpotPhotoVersionRow> get_photo_versions_behavior() {

        return photo_versions_behavior;

    }

    

    public FSpotTableBehavior<FSpotRollRow> get_rolls_behavior() {

        return rolls_behavior;

    }

}

 

}